Mindblown: a blog about philosophy.
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Precipitation test
A test in which a positive reaction is indicated by formation of a precipitate in the solution being tested.
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Precipitant
A substance bringing about precipitation.
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Precautionary principle
A risk management principle, originally developed in the environmental movement, based on the concept of avoiding any new action (e.g., introducing a new technology or a new drug) that carries a hypothetical risk for human or planetary health, regardless of whether the hypothesis has been subjected to formal testing.
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Precapillary
Before or at the beginning of a capillary network, such as a precapillary sphincter.
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Preaxial
In front of the axis of a limb or of the body.
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Preauthorization
The agreement of a health care funding agent (e.g., a health maintenance organization, health insurer, or governmental agency) to defray the costs of a proposed treatment or procedure before its occurrence.
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Preanesthetic
A preliminary drug given to facilitate induction of general anesthesia.
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Preanesthesia
A light anesthesia produced by a medication given before anesthesia.
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Preandrogens
Any biochemical precursors to male hormones. In women with polycystic ovaries, elevated levels of pre-androgens such as androstenedione and dehydroepiandrosterone (DHEA) are found in the bloodstream. These steroid hormones are synthesized in the adrenal glands; DHEA, DHEA sulfate, and androstenedione are converted in target tissues (such as the prostate gland) into dihydrotestosterone, which produces masculinizing…
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Preagonal
To the condition immediately before death. Taking place right before the moment of death.
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